Mouse pointer jumps with external HDD

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I have a new (3 weeks old) WD My passport HDD 1 TB, and I use Windows 7. I run the HDD through a USB 2.0 port, since my computer doesn’t have USB 3.0 ports. My mouse is connected via a USB port as well. It happens occasionally that when I try to access folders on the HDD, the mouse pointer lags and jumps in the direction I moved it to, specially if the folder have many files and folders, and when these folders change there shape according to there contents, also it sometimes happen when I check the size of a large folder.

When it happens it does when I move the pointer over an open window of this drive.
I doubted the antivirus software I have (AVG) so I disabled it but still happens, maybe reduced not really sure but it happens.

Taking in consideration that the drive have shown no sign of other issues. All the WD utility tests, and data life guard tests I ran came out “Passed”. The smart report is OK. But when this condition happened I began to suspect the drive. Do I have a bad drive here??


ok, I add this here as answer, because I need some space (convert it to a comment if needed).

I need to know what happens on your system, so I want to run a xperf trace. Install the Windows Performance Toolkit, copy the following text into a .cmd file:

@echo off

xperf -on Latency+PROC_THREAD+LOADER+CSWITCH+FILENAME+FILE_IO+FILE_IO_INIT+DISK_IO+DRIVERS -f kernel.etl -stackwalk Profile+CSwitch+DiskReadInit+DiskWriteInit+DiskFlushInit+FileCreate+FileCleanup+FileClose+FileRead+FileWrite -BufferSize 1024 -MaxBuffers 1024 -MaxFile 1024 -FileMode Circular

echo Reproduce the problem now, hit any key to finish, collect Merged Etl file


echo merging etl... 

xperf -d xperfSlowIOHighCPUcir.etl

@echo on

Now open a cmd prompt with admin rights ad run the command. Now minimize the cmd Window and when you have the issue again, switch to to the CMD, wait 30s and press a key to stop logging. Compress the xperfSlowIOHighCPUcir.etl as 7z and upload it (SkDrive, Dropbox) and post a link to it.

With this file I can see what your system does when you have the issue.

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